if someone asked for the largest known protein in nature, i would probably tweet this . . .
Methionylthreonylthreonylglutaminylalanylprolylthreonylphenylalanylthreonylglutaminylprolylleucylglutaminylserylvalylvalylvalylleucylglutamylglycylserylthreonylalanylthreonylphenylalanylglutamylalanylhistidylisoleucylserylglycylphenylalanylprolylvalylprolylglutamylvalylseryltryptophylphenylalanylarginylaspartylglycylglutaminylvalylisoleucylserylthreonylserylthreonylleucylprolylglycylvalylglutaminylisoleucylserylphenylalanylserylaspartylglycylarginylalanyllysylleucylthreonylisoleucylprolylalanylvalylthreonyllysylalanylasparaginylserylglycylarginyltyrosylserylleucyllysylalanylthreonylasparaginylglycylserylglycylglutaminylalanylthreonylserylthreonylalanylglutamylleucylleucylvalyllysylalanylglutamylthreonylalanylprolylprolylasparaginylphenylalanylvalylglutaminylarginylleucylglutaminylserylmethionylthreonylvalylarginylglutaminylglycylserylglutaminylvalylarginylleucylglutaminylvalylarginylvalylthreonylglycylisoleucylprolylasparaginylprolylvalylvalyllysylphenylalanyltyrosylarginylaspartylglycylalanylglutamylisoleucylglutaminylserylserylleucylaspartylphenylalanylglutaminylisoleucylserylglutaminylglutamylglycylaspartylleucyltyrosylserylleucylleucylisoleucylalanylglutamylalanyltyrosylprolylglutamylaspartylserylglycylthreonyltyrosylserylvalylasparaginylalanylthreonylasparaginylserylvalylglycylarginylalanylthreonylserylthreonylalanylglutamylleucylleucylvalylglutaminylglycylglutamylglutamylglutamylvalylprolylalanyllysyllysylthreonyllysylthreonylisoleucylvalylserylthreonylalanylglutaminylisoleucylserylglutamylserylarginylglutaminylthreonylarginylisoleucylglutamyllysyllysylisoleucylglutamylalanylhistidylphenylalanylaspartylalanylarginylserylisoleucylalanylthreonylvalylglutamylmethionylvalylisoleucylaspartylglycylalanylalanylglycylglutaminylglutaminylleucylprolylhistidyllysylthreonylprolylprolylarginylisoleucylprolylprol...isoleucin